@charset "UTF-8";
:root{--paper:#f5f4ef;--white:#fffefa;--forest:#173c32;--green:#245848;--lime:#d7e7a8;--ink:#24352f;--muted:#7b837a;--line:#e4e6dc;--serif:"Palatino Linotype","Noto Serif SC","Songti SC",Georgia,serif;--sans:"Microsoft YaHei UI","PingFang SC","Noto Sans SC",sans-serif;--mono:Consolas,"SFMono-Regular",monospace}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.6 var(--sans)}button,input,textarea,select{font:inherit}button{cursor:pointer;transition:background .18s,transform .18s}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #93b666;outline-offset:3px}button{color:inherit}a{color:inherit;text-decoration:none}[hidden]{display:none!important}.app-shell{display:grid;grid-template-columns:268px minmax(0,1fr);min-height:100vh}.sidebar{background:var(--forest);color:#f2f4e9;padding:31px 19px 0;display:flex;flex-direction:column;height:100vh;position:sticky;top:0}.brand{display:flex;gap:12px;align-items:center;padding:0 9px 37px;font-size:19px;letter-spacing:1px;font-weight:600}.brand-mark{font:italic bold 42px/1 var(--serif);letter-spacing:-5px;color:var(--lime);width:38px}.brand-mark span{color:#f7f7eb}.brand small{display:block;font:8px/2.5 var(--mono);letter-spacing:1.25px;color:#a6b9a9}.sidebar-heading{display:flex;justify-content:space-between;align-items:center;padding:0 10px 13px;font-size:12px;color:#c3d0c3}.count{font:11px var(--mono);background:#ffffff13;padding:3px 8px;border-radius:4px}.search{display:flex;gap:9px;align-items:center;background:#ffffff09;border:1px solid #ffffff1a;border-radius:7px;padding:8px 11px}.search>span{font-size:24px;line-height:1;color:#c1d2b6}.search input{min-width:0;width:100%;border:0;background:transparent;color:white;font-size:12px;outline:none}.search input::placeholder{color:#a8bdad}.vendor-filters{display:flex;gap:5px;flex-wrap:wrap;padding:14px 1px 12px}.vendor-filter{background:transparent;border:1px solid transparent;color:#abc0ae;border-radius:5px;padding:4px 7px;font-size:10px}.vendor-filter.active{color:var(--lime);border-color:#d7e7a836;background:#ffffff0a}.model-list{overflow-y:auto;flex:1;scrollbar-width:thin;scrollbar-color:#4a6558 transparent;padding-bottom:16px}.model-button{border:1px solid transparent;background:transparent;color:#c9d8cd;display:flex;align-items:center;gap:10px;width:100%;padding:10px 9px;text-align:left;border-radius:7px;margin:3px 0}.model-button:hover{background:#ffffff09}.model-button.active{background:#d7e7a815;border-color:#d7e7a83b;color:#f5f8e8}.model-icon{flex:0 0 29px;height:29px;display:grid;place-items:center;border:1px solid #ffffff20;border-radius:7px;font:15px var(--serif);background:#ffffff08;color:#dce8c5}.model-button.active .model-icon{background:var(--lime);color:var(--forest);border-color:var(--lime)}.model-button strong{font-size:11px;display:block;font-weight:500}.model-button small{display:block;font:9px/1.8 var(--mono);color:#9bb19f}.model-button .selected-dot{width:5px;height:5px;background:var(--lime);border-radius:50%;margin-left:auto}.side-placeholder{font-size:12px;color:#b7c7b7;padding:12px 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var(--mono);margin-left:7px;opacity:.7}.tab.active{border-color:var(--green);color:var(--forest);font-weight:600}.chat-layout{display:grid;grid-template-columns:minmax(0,1fr) 228px;gap:22px;align-items:start}.conversation-card{background:var(--white);border:1px solid var(--line);border-radius:10px;overflow:hidden}.conversation-header{display:flex;justify-content:space-between;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:20px 23px}.selected-info{display:flex;gap:12px;align-items:center;min-width:0}.selected-info>div{min-width:0}.large.model-icon{flex-basis:38px;height:38px;background:#eef1e7;color:var(--green);border:1px solid #dbe1d2;font-size:22px}.selected-info h2{font-size:14px;line-height:1.3;margin:0 0 4px;font-weight:600}.mono{font:10px 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